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Question
Jamie started saving $15 per week. Which table represents y, the amount of money in dollars Jamie saved in x weeks.
Responses
A
Jamie's Savings
Number of Weeks, x Number of Dollars, y
1 15
2 30
3 45
4 60Jamie's Savings Number of Weeks, x Number of Dollars, y 1 15 2 30 3 45 4 60
B
Jamie's Savings
Number of Weeks, x Number of Dollars, y
1 55
2 45
3 30
4 55Jamie's Savings Number of Weeks, x Number of Dollars, y 1 55 2 45 3 30 4 55
C
Jamie's Savings
Number of Weeks, x Number of Dollars, y
1 15
2 15
3 15
4 15Jamie's Savings Number of Weeks, x Number of Dollars, y 1 15 2 15 3 15 4 15
D
Jamie's Savings
Number of Weeks, x Number of Dollars, y
15 1
30 2
45 3
60 4
The correct answer is A.
Explanation:
The table in option A represents the correct relationship between the number of weeks (x) and the amount of money saved (y). Each week, Jamie saves $15, so the amount of money saved doubles each week. This is shown in the table where the amount of dollars (y) doubles each time the number of weeks (x) increases by 1.
Kenya has 2 hours to make a 104 mile trip. What rate must she average to make the trip in 2 hours?
Responses
A 50 mph50 mph
B 51 mph51 mph
C 52 mph52 mph
D 53 mph
The correct answer is C.
Explanation:
To find the rate Kenya must average to make the trip in 2 hours, we divide the distance of the trip (104 miles) by the time it takes to make the trip (2 hours).
104 miles divided by 2 hours equals 52 miles per hour.
Therefore, Kenya must average a speed of 52 mph to make the trip in 2 hours.
540 calories 4 serving
Find the unit rate for the calories in the candy bar.
Responses
A 95 calories per serving95 calories per serving
B 120 calories per serving120 calories per serving
C 135 calories per serving135 calories per serving
D 145 calories per serving
The correct answer is B.
Explanation:
To find the unit rate for the calories in the candy bar, we divide the total calories (540 calories) by the number of servings (4 servings).
540 calories divided by 4 servings equals 135 calories per serving.
Therefore, the unit rate for the calories in the candy bar is 135 calories per serving.
x y
0 3
1 1
2 -1
Which equation represents the data in the table shown?
Responses
A y = −2xy = −2x
B y = 2x + 3y = 2x + 3
C y = −2x + 3y = −2x + 3
D y = −2x − 3y = −2x − 3
E y = −4x − 3
To determine the equation that represents the given data in the table, we can examine the pattern in the values.
From the table, we can notice that as the value of x increases by 1, the value of y decreases by 2.
The equation that represents this pattern is y = -2x + 3.
Therefore, the correct answer is C: y = -2x + 3.